[u-boot.git] / cmd / bootz.c

/*
 * (C) Copyright 2000-2009
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <bootm.h>
#include <command.h>
#include <lmb.h>
#include <linux/compiler.h>

int __weak bootz_setup(ulong image, ulong *start, ulong *end)
{
	/* Please define bootz_setup() for your platform */

	puts("Your platform's zImage format isn't supported yet!\n");
	return -1;
}

/*
 * zImage booting support
 */
static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
			char * const argv[], bootm_headers_t *images)
{
	int ret;
	ulong zi_start, zi_end;

	ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
			      images, 1);

	/* Setup Linux kernel zImage entry point */
	if (!argc) {
		images->ep = load_addr;
		debug("*  kernel: default image load address = 0x%08lx\n",
				load_addr);
	} else {
		images->ep = simple_strtoul(argv[0], NULL, 16);
		debug("*  kernel: cmdline image address = 0x%08lx\n",
			images->ep);
	}

	ret = bootz_setup(images->ep, &zi_start, &zi_end);
	if (ret != 0)
		return 1;

	lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);

	/*
	 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
	 * have a header that provide this informaiton.
	 */
	if (bootm_find_images(flag, argc, argv))
		return 1;

	return 0;
}

int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	int ret;

	/* Consume 'bootz' */
	argc--; argv++;

	if (bootz_start(cmdtp, flag, argc, argv, &images))
		return 1;

	/*
	 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
	 * disable interrupts ourselves
	 */
	bootm_disable_interrupts();

	images.os.os = IH_OS_LINUX;
	ret = do_bootm_states(cmdtp, flag, argc, argv,
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
			      BOOTM_STATE_RAMDISK |
#endif
			      BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
			      BOOTM_STATE_OS_GO,
			      &images, 1);

	return ret;
}

#ifdef CONFIG_SYS_LONGHELP
static char bootz_help_text[] =
	"[addr [initrd[:size]] [fdt]]\n"
	"    - boot Linux zImage stored in memory\n"
	"\tThe argument 'initrd' is optional and specifies the address\n"
	"\tof the initrd in memory. The optional argument ':size' allows\n"
	"\tspecifying the size of RAW initrd.\n"
#if defined(CONFIG_OF_LIBFDT)
	"\tWhen booting a Linux kernel which requires a flat device-tree\n"
	"\ta third argument is required which is the address of the\n"
	"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
	"\tuse a '-' for the second argument. If you do not pass a third\n"
	"\ta bd_info struct will be passed instead\n"
#endif
	"";
#endif

U_BOOT_CMD(
	bootz,	CONFIG_SYS_MAXARGS,	1,	do_bootz,
	"boot Linux zImage image from memory", bootz_help_text
);
Commit	Line	Data
5db28905 TR	1	/*
	2	* (C) Copyright 2000-2009
	3	* Wolfgang Denk, DENX Software Engineering, [email protected].
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
	9	#include <bootm.h>
	10	#include <command.h>
	11	#include <lmb.h>
	12	#include <linux/compiler.h>
	13
	14	int __weak bootz_setup(ulong image, ulong start, ulong end)
	15	{
	16	/* Please define bootz_setup() for your platform */
	17
	18	puts("Your platform's zImage format isn't supported yet!\n");
	19	return -1;
	20	}
	21
	22	/*
	23	* zImage booting support
	24	*/
	25	static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
	26	char * const argv[], bootm_headers_t *images)
	27	{
	28	int ret;
	29	ulong zi_start, zi_end;
	30
	31	ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
	32	images, 1);
	33
	34	/* Setup Linux kernel zImage entry point */
	35	if (!argc) {
	36	images->ep = load_addr;
	37	debug("* kernel: default image load address = 0x%08lx\n",
	38	load_addr);
	39	} else {
	40	images->ep = simple_strtoul(argv[0], NULL, 16);
	41	debug("* kernel: cmdline image address = 0x%08lx\n",
	42	images->ep);
	43	}
	44
	45	ret = bootz_setup(images->ep, &zi_start, &zi_end);
	46	if (ret != 0)
	47	return 1;
	48
	49	lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
	50
	51	/*
	52	* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
	53	* have a header that provide this informaiton.
	54	*/
	55	if (bootm_find_images(flag, argc, argv))
	56	return 1;
	57
	58	return 0;
	59	}
	60
	61	int do_bootz(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	62	{
	63	int ret;
	64
65	/* Consume 'bootz' */
66	argc--; argv++;
67
68	if (bootz_start(cmdtp, flag, argc, argv, &images))
69	return 1;
70
71	/*
72	* We are doing the BOOTM_STATE_LOADOS state ourselves, so must
73	* disable interrupts ourselves
74	*/
75	bootm_disable_interrupts();
76
77	images.os.os = IH_OS_LINUX;
78	ret = do_bootm_states(cmdtp, flag, argc, argv,
4943dc2f CS	79	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	80	BOOTM_STATE_RAMDISK \|
	81	#endif
5db28905 TR	82	BOOTM_STATE_OS_PREP \| BOOTM_STATE_OS_FAKE_GO \|
	83	BOOTM_STATE_OS_GO,
	84	&images, 1);
	85
	86	return ret;
	87	}
	88
	89	#ifdef CONFIG_SYS_LONGHELP
	90	static char bootz_help_text[] =
	91	"[addr [initrd[:size]] [fdt]]\n"
	92	" - boot Linux zImage stored in memory\n"
	93	"\tThe argument 'initrd' is optional and specifies the address\n"
	94	"\tof the initrd in memory. The optional argument ':size' allows\n"
	95	"\tspecifying the size of RAW initrd.\n"
	96	#if defined(CONFIG_OF_LIBFDT)
	97	"\tWhen booting a Linux kernel which requires a flat device-tree\n"
	98	"\ta third argument is required which is the address of the\n"
	99	"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
	100	"\tuse a '-' for the second argument. If you do not pass a third\n"
	101	"\ta bd_info struct will be passed instead\n"
	102	#endif
	103	"";
	104	#endif
	105
	106	U_BOOT_CMD(
	107	bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
	108	"boot Linux zImage image from memory", bootz_help_text
	109	);